TPS24750/about Active ORing

Tsukui Yusuke

Guru 21930 points

Other Parts Discussed in Thread: TPS24750

Hi,

Could you tell me about how to use TPS24750?
Customers want to use the TPS24750 as TPS25942.
Is it possible to use as below?

Please tell me if there is a recommended circuit.

Best Regards,
Yusuke/Japan Disty

over 9 years ago

0 Venkata Nandam over 9 years ago

TI__Intellectual 2800 points

Hi Yusuke,

Unfortunately, this device can not support active ORing. What is the load current support required?

Regards,
Venkat

0 Tsukui Yusuke over 9 years ago in reply to Venkata Nandam

Guru 21930 points

Venkat-san,

Thank you for your response.
I reported it to the customer.
Let me ask you one more thing.
The low product of the ON resistance than B Please tell us about the release schedule.

Best Regards,
Yusuke/Japan Disty

0 Venkata Nandam over 9 years ago in reply to Tsukui Yusuke

TI__Intellectual 2800 points

Hi Yusuke-san,

"The low product of the ON resistance than B Please tell us about the release schedule."

Which product are you asking about? Any part number?

Regards,
Venkat

0 Tsukui Yusuke over 9 years ago in reply to Venkata Nandam

Guru 21930 points

Venkata-san,

Thank you for your response.
I am sorry for not explaining sufficiently.

It is intended to replace the TPS25942.
Customers want to lower ON resistance of large current model(customer application).

Could you give me your advice？

Best Regards,
Yusuke/Japan Disty

0 Venkata Nandam over 9 years ago in reply to Tsukui Yusuke

TI__Intellectual 2800 points

Hi Yasuke-san,

What is the load current requirement?

Regards,
Venkat

0 Tsukui Yusuke over 9 years ago in reply to Venkata Nandam

Guru 21930 points

Venkat-san,

Thak you for your support.
Customer requirement constant current is 5A.
TPS25942 is thermal loss becomes large in this condition.
Do you have comparable or substitute product information?

Best Regards,
Yusuke/Japan Disty

0 Venkata Nandam over 9 years ago in reply to Tsukui Yusuke

TI__Intellectual 2800 points

Hi Yasuke-san,

Worst case maximum power dissipation in the device Pd = 5*5*60m = 1.5W.

Is it not acceptable?

Regards,
Venkat

0 Tsukui Yusuke over 9 years ago in reply to Venkata Nandam

Guru 21930 points

Venkat-san,

Thank you for your advice.
However,Customer application is battery operated.
For that reason,Customers want to reduce the power consumption even a little.

Best Regards,
Yusuke/Japan Disty

0 Venkata Nandam over 9 years ago in reply to Tsukui Yusuke

TI__Intellectual 2800 points

Hi Yasuke-san,

Can the customer connect two devices in parallel to reduce on resistance?

Regards,
Venkat

0 Tsukui Yusuke over 9 years ago in reply to Venkata Nandam

Guru 21930 points

Venkat-san,

Thank you for your support.
I suggest your information to the customer.
Is it correct with the understanding that the new product is not it?

Regards,
Venkat

0 Venkata Nandam over 9 years ago in reply to Tsukui Yusuke

TI__Intellectual 2800 points

Hi Yasuke-san,

Not a new device. Two devices need to be connected in parallel to reduce on-resistance.

Regards,
Venkat

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TPS24750/about Active ORing